Combination thill-detacher and brake.



No. 783,522. PATENTED FEB. 28, 1905. H. H. HARSHAW. COMBINATION THILL DETAGHER ANDBRAKE.

APPLICATION IILED SEPT. 6.1904.

3 SHEETS-SHEET 1.

No. 783,522. PATENTED FEB. 28, 1905. H. H. HARSHAW.

GMBINATION THILL DETAHER AND BRAKE.

APPLICATION FILED SEPT. B. 1904.

3 SHEETS-SHEET Z.

PATEN'I'ED FEB. 28, 1905.

. H. H. HARSHAW.

COMBINATION THILL DETAGHER AND BRAKE.

APPLIUATION FILED SBPT.6.1904.

3 SHEETS-SHEET 3.

Jl l' n/d attenua# lilo. 783,522.

.llatenteu lliehruary 28, 19055..

kriginal Vlin-mariant n. nessuna',

OF BUTLER., 'lrllSSOURll GOllllBlNATlON 'l'HlLl.-DETAHEIR lilNl UMANE.

SPECIFCATIGN forming part of Letters Patent No. 783,522, dated February 28, 1905.

Application i'lled September 6, 1904. Serial Nn. 223,346.

isms.

The object ol my invention is to provide a device by which the thills may he quickly detached from the vehicle, thus releasing the horse or horses from the Vehicle and preventing liability of injury to the driver or occupants or' the vehicle.

My invention provides, further, an emergencvbralte which is applied simultaneously with the detachingof the thills. By the ready removal of the thills economy of space in the stable is obtained. Other novel features are hereinafter fully described and claimed.

ln the accompanying drawings, Figure l is a top view showing the thills engaged. Fig. 2 is a top View showing the positions of the parts whenthe thills are being released. Fig. 3 is an enlarged vertical sectional view taken on the dotted line a L et' Fig. 8. Fig. 4i is a cross-section taken on the dotted line c e/ of Fig. l. Fig. 5 is a cross-section taken on the dotted line (j fol: Fig. l. Fig. (i is an end elevation view oi' one ol the cams used to close the jaws l/l. liig. 7 is a cross-section taken on the dotted line /r of Fig. l. Fig. 8 is a top view.v enlargi-id, of one oi' the thill-couplings. Fig. 9 is a top viewolI the mechanism, showing another 'form ot brake, the parts beingl shown in the positions occupied by them when the thills are engaged with the jaws llt. Fig. lO is a top view of one brake of the form shown in Fig. 9 and also a part oiI the adjacent wheel and axle. Fig. ll is a cross-section taken on the dotted line v.' y' of Fig. 9.

Similar characters of reference denotelsimilar parts.

l denotes the vehicle-axle, 2 the thills, and 3 the wheels mounted on the axle.

4 denotes two clips of the ordinary consti' uction. mounted on the axle l adjacent the ends oi' the axle, respectively. A projection is provided on the forward side ot' each clip, each projection being` provided with a transverse horizontal hole in which is mounted a rock-bar (i. n each end of the rock-har G is secured in any desired manner a collar 7 adjustable lengthwise and circmnlierentiallv olI the said bar. Each ol said collars is preierably transversely split and provided with two peripheral ears 8 and E), the said ears being provided each with a transverse hole in ,which is mounted a screw-threaded holt lll, which rotates lreely in one ear and engages screw-threads in the other ear. Lly properly adjusting the bolts l0 the collars T may be securely held in any position on the bar G to which they may be adjusted. lilncircling each huh ot' each wheel 3 is a brake-strap ll. preierably of steel and having itsI ends secured b v means orf a screw l2 to the adjacentcollar 7. by rocking the bar 6 in the proper direction the strap ll may he made to tightly hind. on the huh of the adjacent wheel. lilach projeetion on each clip 4 is provided in the rear ol the bar 6 with a vertical hole in which is mounted a pin 13, to which are pivoted above andv below the projection 5 the rear ends ot two t/- shaped jaws lei, the forward end oli each ot which is prmfided with a horizontal projection l5 on the inner side o'lI the jaw and adapted to enter the transverse hole with which the rear end ol'I each thill 2 is provided.

(ln the inner side of each jaw lil is secured a flat spring lli, the lorward end ci which bears upon the outer sideol the znljacent thill 2 and the rear end bearing upon the outer side ol the projection in liront ol' the pin ll. The forward end ol each spring le is provided with a transverse hole through which 'the ndjacent projection is adapted to extend. The springs .IG are normally inwardly curved, as shown in dotted lines in `lig. h, so that they tend by their tension to swing the jaws lst away from each other, thus releasi ng the 'thills 2 from the projections 15 on the jaws. 'lhe springs le by their pressure on the thills also serve to prevent rattle o1 the thills. Un the rock-bar 6 at each side ot' each thill-coupling is secured a collar i7, having a cam-face i8,

adapted to bear upon the adjacent jaw 14. l retaining'means for holding the bar6in either By properly rocking the bar 6 the camcollars 17 vforce the jaws 14- toward each other, so as 2 to force the projections 15 into the holes of the thills againstthe pressure of the springs 16. l

Upon the bar 6 near its middle is secured a split or pinch collar 19. (Best shown in Fig'. 5.) At each end of this collar is provided a j pair of oppositely-disposed projections 20. i A lever comprising two forwardly-extending bars 22 is pivoted at its rear end upon the bar 6, the bars being mounted at opposite ends of the collar 19 and between the projections 20. The forward ends of the bars 22 are secured together and have secured to them at the forward ends a cable or cord 21, which extends upwardly through an eye provided in the dashboard 23, the upper end of the cord 21 having' secured to it a ring 21, by which the cord is upwardly drawn for the purpose of rocking the bar 6, so as to permit the jaws 141 to open and release the thills and at the same time to apply the brake bands or straps 11 to The collar 19 (best shown in sition in the seat, if desired.

A slotted plate 28 is mounted on the threaded i shanls of the clip 27 below the axle 1 and is held thereon by the nuts 29. The slot 30 in the plate 28 permits forward and rearward adjustment of the plate to suit different shapes of axles. At the rear end of the plate 28 is provided a downwardly-extending projection 31, to which is secured the rear end of a compression-spring 32, the forward end of which is secured to and between twoparallel peripheral arms 33 on a split or pinch collar 34, mounted on the bar 6, at one side of the collar 19. This collar 34 is provided with two ears, each having a hole, one of which is threaded. 1n these holes is mounted a bolt 35, by the turning of which the collar Inay be tightened or loosened on the bar 6. The collar 34 is longitudinally and circumferentially adjustable on the bar 6.

rlhe collar 34 is positioned on the bar 6 so that when the bar 6 is swung to and fro the outer end of the compression-spring` 32 will cross a straight line extending' from the center of the bar 6 to the point on the plate 28 to which the rear end of the spring is secured. rfhe spring' 32 will thus resist swinging of the bar 6 in either direction until said bar has been i swung to a position in which the outer end of the spring 32 will have crossed the straight line just referred to, after which the spring 32 will assist in continuing' the forward movement of g the rock-bar 6 in the direction in which it is being' moved.

ism.

position to which it may be rocked.

ln operating' my invention when it is desired to release the thills from the vehicle the same may be done by pulling' on the cord or cable 21, the driver in the meantime retaining' his polVhen the cord 21 is pulled, the rock-bar will be rocked by the bars 22 in a direction such that the camcollars 17 will be moved so that the cam-faces 18 will permit the jaws 111 to swing' apart or from each other, due to the springs 16. rlhe thills 2 will thus be forced from olf the projections 15, and the thills will thus be released and the vehicle freed from the horse or horses. At the same time the collars 7 will be turned so as to draw the ends of the straps 11 forwardl y and upwardly, thus tightening the said straps on the hubs of the wheels and stopping' forward movement of the vehicle. The compression-spring' 32 will then retain the bar 6 in a position in which the jaws 141 will remain open. To reinsert and secure the thills, it is but necessary to place them between the jaws 14E and retract the bar 6 in the opposite direction by swinging' downward the bars 22, thus rotating' the cam-collars 17 to a position such that they will force the jaws 14 toward each other and cause them to engage the thills.

In Figs. 9, 10, and 11 is illustrated another form of braking device adapted to be used in connection with the thill-detaching` mechan- On the ends of the bar 6 are mounted, respective'ly, two collars 36, each of which is transversely split and provided with two ears 37,having transverse holes, in which is mounted a threaded bolt 38, having' on its threaded end a nut 39, the nut and bolt-head resting, respectively, against the outer sides of the ears 37. By proper adjustment of the nut on the bolt the ears 37 may be made to approach or recede from each other for the purpose of tightening or loosening' the collar 36 on the rock-bar 6. On each collar 36 is provided a peripheral projection 40, to the outer side of which is secured one end of a resilient cam A11 in the form of a part of a circle the center of which is the axis of the bar 6. The free end of each cam 41 is disposed in a transverse plane located outside of the transverse plane in which is located the inner end of the cam, the cam having a spiral form. The collars 36 are secured on the bar 6 in positions such that when the parts are in the position shown in Figs. 9, 10, and 11 the cams L11 will not touch the hubs of the wheels. Then the bar 6 is rotated to a position for freeing the projections on the jaws 14 from the thills 2, the cams 11 will be positioned so as to bear tightly against the inner ends of the hubs of the wheels 3, thus exerting' a braking' pressure on the wheels. As soon as the resilient cams 11 are brought against the hubs of the wheels 3 the The spring 32 thus serves as a l forward rotation of said wheels will cause the IOO TIO

vease..

cams to be more tightly :iorced against the hubs, thus assisting the driver in applying the brakes. By rotating the roch-bar 6 in the opposite direction the cams il will again be released from pressure against the hubs oi the wheels.

lrly invention may be applied to various styles ol' vehicles, whether possessed of shafts or oil tongues.

Various inodilications of my invention may be resorted to without departing from its spirit.

` I'iaving thus described my invention, what l claim, and desire to secure by Letters Patent, is-v l. The combination with the axle, ot' a thill coupling supported thereby, and provided with means for releasably engaging a thill, a roekdiar, means 'for rocking said bar to and tro, resilient means for resisting rocking oi' the bar until said bar has been rocked toa certain position in a certain direction and thereafter assisting rockingoii the bar in said direction, and means by which, when said bar is properly rocked, the thill-coupling will be actuated so as to release the thill held thereby.

2. lhe combination with the axle, of two thillcouplings supported thereby and provided with means Vtor reieasably engaging two thills respectively, a rock-bar, means for rocking` said bar to and fro, resilient means for resisting rocking of the bar in either direction until the bar has been rocked to a certain position and thereafter assisting rocking of the bar in the said direction, and means by which, when the bar is rocked in the proper direction,the thill-couplings will be actuated so as to release respectively the two thills engaged by said couplings.

3. The combination with the axle, oi a thill coupling su pported thereby and provided with means for relrasably engaging a thill, a bralv ing device adapted to engage a wheel mounted on the axle, a rocl -bar, means for rocking said bar to and tro, resilientmeans for resisting rocking oi the bar from one position to the other in either direction until said bar has been rocked to a given position and thereat ter assisting in the rocking o'll the bar in the same direction, and means by which, when said bar is rocked in the proper direction, the braking device will be operated to engage the wheel and the thill-coupling be actuated so as to release the thill held thereby.

Li. The combination with the axle, oi two thill-couplings supported thereby and pro- `vided with means for releasably engaging two thills respectively, a braking device adapted to engagea wheel mounted on the axle, a rockbar, means tor rocking said bar to and fro, resilient means resisting rocking oi the bar in either direction until the bar has been rocked to a given position and thereafter assi-sting further rocking of the bar in the same direction, and means by which, when the bar is rocked in the proper direction, the braking device will be actuated so as to engage the wheel and the two couplings will be actuated in a manner to release two thills engaged thereby.

5. The combination with the axle, oi a clip mounted thereon, two jaws mounted on said clip and movable toward and Ylrom cach other and provided with means for engaging between them releasably, a thill, means i'or moving said jaws in a direction to release the thill, and means tor retracting said jaws in the opposite direction.

6. The combination with the axle, oi a clip supported thereby, two jaws pivoted to said clip and provided with means ilior supporting a thill between them, means lor swinging said jaws apart so as to release the thill, and means Jfor retracting said jaws in the opposite direction.

7. The combination with the axle, oi two clips mounted thereon, two pairs ot jaws pivoted one pair to each of said clips, each pair ol jaws being provided with means for releasably engaging a thill between them, means for simultaneously swinging apart the Ijaws of each pair, and means for retracting the jaws in the opposite direction.

8. The combination with the axle, ol'A a clip mounted thereon, two jaws movably mounted on said clip and provided with means t'or releasably engaging the thill between them, a movable member, and means, when said member is properly moved, tor moving said jaws relative to each other.

9. The combination with the axle, oi a clip mounted thereon, two jaws pivoted to said clip and provided with means for releasably engaging' a thill between them, a movable member, and means lor swinging said jaws when said member is properly moved.

10. The combination with the axle, ot' a clip mounted thereon, two jaws movably mounted on said clip and provided with means for releasably engagingathill between them, a rockbar and means, when said bar is properly rocked, said jaws -will be moved relative to each other.

l1. The combination with the axle, ol a clip mounted thereon, two jaws pivoted to said clip and provided with releasable means `for engaging between them a thill, a roch-bar and means for swinging said jaws when the bar is rocked in the proper direction.

12. The combination with the axle, of a clip mounted thereon, two jaws mounted on said clip and movable toward and from cach other and provided with means for releasably engaging a thill, resilient means `for forcing said jaws apart to release the thill, and means ior moving the said jaws inthe opposite direction.

13. The combination with the axle, oll two clips mounted. thereon and provided with means tor releasabl y supporting between them a thill, resilient means tor swinging said jaws IOO TIS

apart so as to release the thill, and means for swinging the jaws in the opposite direction.

14. The combination with the axle, ot a clip mounted thereon, two jaws mounted on the clip and movable toward and from each other, and provided with means when properly positioned,for releasably engaging between them a thill, resilient means for forcing the jaws apart to release the thill, a movable bar and means for forcing said jaws toward each other when the bar is properly moved.

15. The combination with the axle', of a clip mounted thereon, two jaws mounted on said clip, and provided with means when properly positioned, for releasably engaging between them a thill, resilient means for forcing said jaws apart to release the thill, a rock-bar, and means for forcing said jaws toward each other when the bar is properly rocked.

16. The combination with the axle, of a clip mounted thereon, two jaws pivoted to the clip and provided with means for releasably engaging between them a thill, resilient means for swing'ing said jaws apart to release the thill, a movable bar, and means for swinging said jaws toward each other when the bar is properly moved.

17. The combination with the axle, of a clip mounted thereon, two jaws pivoted to the clip and provided with means for engaging a thill, resilient means for swinging the jaws apart, a rock-bar, and means for swinging said jaws toward each other when the bar is properly rocked.

18. The combination with the axle, of two clips mounted thereon, two pairs ot' jaws movably mounted, one pair on each clip, each pair being provided with means for engaging a thill, resilient means for forcing the jaws of each pair apart, and means for simultaneously moving the jaws of both pairs in the opposite direction.

19. The combination with the axle, of two clips mounted thereon, two pairs of jaws pivoted one pair to each clip, each pair being' provided with means for releasably engaging between them a thill, resilient means Jfor swinging apart the jaws of each pair, the rock-bar, and means for swinging the jaws of each pair toward each other when the bar is properly rocked.

20. The combination with the axle, of two couplings supported thereby, and provided with means for releasably engaging two thills respectively, a braking device adapted to engage a wheel mounted on the axle, a rock-bar, means by which said bar may be rocked-to and fro, resilient means for retaining the said bar in two positions to which it may be rocked, means controlled by the rocking or' said bar for releasing the couplings from the thills, and means Jor applying the braking device to the wheelsimultaneously with the releasing of the thills by the couplings.

21. The combination with the axle, of two clips mounted thereon, two pairs of jaws pivoted one pair to each clip, each pair being' provided with means for releasably engaging a thill, a braking' device, means for `forcingsaid jaws apart to release the thills, a rock-bar, means by which said bar may be rocked to and fro, means controlled by the rockingoi' the bai' for actuating the braking device, and means controlled by the rocking of the bar for controlling the swinging of the jaws apart.

22. The combination with the axle, ot'. two thills, two couplings supported by the axle and provided with means for releasably engaging' said thills respectively, a rock-bar, a cam-shoe carried by said rock-bar, and means controlled by the movement of said bar for releasing the thills from said couplings.

23. The combination with the axle ot' two thills, two couplings supported by the axle and provided with means for releasably engaging said thills respectively, a rock-bar, a resilient cam-shoe carried thereby and adapted to engage one otl the vehicle-wheels, and means controlled by the movement of said bar for releasing' the thills from said couplings.

24. The combination with the axle, of two thills. two coupling's supported by the axle and provided with means for releasably engaging said thills respectively, a rock-bar, means controlled by the rocking of said bar for releasing' the thills from the couplings, a brake-shoe mounted on and movable with said rock-bar, and means for rocking said bar.

25. The combination with the axle, of the wheels mounted thereon, two thills, two couplings supported by the axle and provided with means for releasably engaging said thills respectively, a rock-bar, means controlled by the rocking oi' said bar for releasing the thills from said couplings, means for rocking said bar, two brake-shoes carried by said rock-bar and adapted when the Vbar is properly positioned to engage respectively with the vehicle-wheels.

In testimony whereoic l have signed my name to this speciiication in the presence ot' two subscribing witnesses.

HABLAN H. H ARSHAV lVitnesses:

WARREN D. HOUSE, HENRY F. Rosin.

TOO

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